Pressure cooker



FIG. 1 is a right side elevational view of the pressure cooker;

FIG. 2 is a left side elevational view of the pressure cooker;

FIG. 3 is a rear elevational view of the pressure cooker;

FIG. 4 is a front elevational view of the pressure cooker;

FIG. 5 is a top plan view of the pressure cooker;

FIG. 6 is a bottom plan view of the pressure cooker; and,

FIG. 7 is a perspective view of the pressure cooker. 

The ornamental design for a pressure cooker, as shown. 